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Micro-angle tilt detection for the rotor of a novel rotational gyroscopewith a 0.47’’ resolution Article

Hai LI, Xiao-wei LIU, Rui WENG, Hai-feng ZHANG

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 5,   Pages 591-598 doi: 10.1631/FITEE.1500454

Abstract: Differential capacitive detection has been widely used in the displacement measurement of the proof massof vibratory gyroscopes, but it did not achieve high resolutions in angle detection of rotational gyroscopesIn this paper, a differential capacitive detection structure is presented to measure the tilt angle ofRate table test results of the gyroscope show that the smallest resolvable tilt angle of the rotor isless than 0.47’’ (0.00013 ), and the nonlinearity of the angle detection structure is 0.33%, which can

Keywords： Micro-angle detection     Differential capacitive structure     Rotational gyroscope     Structure optimization    

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Precise semi-analytical inverse kinematic solution for 7-DOF offset manipulator with arm angle optimization

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3,   Pages 435-450 doi: 10.1007/s11465-021-0630-x

Abstract: However, finding the analytical solution of an EMM on the basis of arm angle parameterization is difficultFirstly, the analytical inverse kinematic solution is established based on joint angle parameterizationerror is corrected using a numerical method through the analytical inverse solution based on joint angleLastly, case solutions confirm that this method has high precision, and the arm angle parameterizationmethod is superior to the joint angle parameterization method in terms of parameter selection.

Keywords： 7-DOF redundant manipulator     inverse kinematics     semi-analytical     arm angle     link offset    

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Evaluating the material strength from fracture angle under uniaxial loading

Jitang FAN

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2,   Pages 288-293 doi: 10.1007/s11709-018-0480-8

Abstract: Shearing fracture angle is smaller than 45° under uniaxial compression and greater than 45° under uniaxialmaterial strength under uniaxial compression and tension is developed by correlating the shearing fracture angleis quantitatively illustrated by a function for analyzing the material strength from shear fracture angle

Keywords： strength     fracture     mechanics    

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Flexible micro flow sensor for micro aerial vehicles

Rong ZHU, Ruiyi QUE, Peng LIU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 4,   Pages 539-545 doi: 10.1007/s11465-017-0427-0

Abstract:

This article summarizes our studies on micro flow sensors fabricated on a flexible polyimide circuitThe micro flow sensor has merits of flexibility, structural simplicity, easy integrability with circuitsIn our study, we install the fabricated micro flow sensors on micro aerial vehicles (MAVs) to detect

Keywords： micro flow sensor     flexible sensor     surface flow sensing     aerodynamic parameter     micro aerial vehicle (MAV    

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Computation of the protein molecular mechanism using adaptive dihedral angle increments

Mikel DIEZ, Victor PETUYA, Mónica URIZAR, Erik MACHO, Oscar ALTUZARRRA

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 1,   Pages 104-108 doi: 10.1007/s11465-013-0360-9

Abstract:

Protein motion simulation is still a troublesome problem yet to be solved, especially due to its high computational requirements. The procedure presented in this paper makes use of the proteins’ real degrees of freedom (DOFs). The procedure makes no use of any intermediate energy minimization processes that may alter the motion path or result in very high computational cost requirements. In order to reduce the computational cost, presented algorithms make use of the balls and rods approach for protein structure modelization. Also, structures are normalized in order to minimize inaccuracies introduced by experimental methods, providing a more efficient but still accurate structure for motion simulation.

Keywords： kinematics     serial robot     proteins     folding     molecular mechanism    

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CFD simulation on shell-and-tube heat exchangers with small-angle helical baffles

Minhua ZHANG,Fang MENG,Zhongfeng GENG

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 2,   Pages 183-193 doi: 10.1007/s11705-015-1510-x

Abstract: This paper focused on the small-angle helical baffles that have been merely reported in open literatureThese baffles are noncontinuous helical baffles with a helix angle of 10° to 30°, and their shapes are

Keywords： heat transfer     pressure drop     helical baffle     CFD    

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Dependence of error sensitivity of frequency on bias voltage in force-balanced micro accelerometer

Lili CHEN, Wu ZHOU

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 2,   Pages 146-149 doi: 10.1007/s11465-013-0260-z

Abstract:

To predict more precisely the frequency of force-balanced micro accelerometer with different biasBased on the theoretical results, micro accelerometer is fabricated and tested to study the influences

Keywords： Micro-Electro-Mechanical Systems (MEMS)     micro accelerometer     force-balanced micro accelerometer     frequency    

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Numerical simulation of micro scale flowing and boiling

Wen WANG, Rui ZHUAN,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 396-401 doi: 10.1007/s11708-009-0049-2

Abstract: Numerical simulations of flowing and boiling in micro channels are presented, including the modelingThe simulated results also show the details of 3-dimensional heat transfer and the flow in micro channels, which are helpful to the investigation of the mechanism of two-phase heat transfer and flow in micro

Keywords： volume-of-fluid (VOF)     micro channel     nucleate boiling     bubble dynamics     simulation    

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Effects of Boundary Condition and Helix Angle on Meshing Performance of TI Worm Gearing

SUN Yue-hai, DUAN Lu-qian, WANG Shu-ren, ZHANG Ce

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 1,   Pages 90-95 doi: 10.1007/s11465-005-0006-7

Abstract: (TI) worm gearing, the authors introduced boundary condition into contact line analysis.With helix angleIf the helix angle is equal to or slightly smaller than the bigger angle, which makes two meshing boundary

Keywords： preferable     inexistence     Results     validity     boundary condition    

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Dynamical research on spherical micro actuator with piezoelectric ceramic stacks drivers

ZHANG Ruihua, CHEN Haichu

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4,   Pages 433-438 doi: 10.1007/s11465-007-0074-y

Abstract: This paper develops a 30 mm × 30 mm × 50 mm spherical micro actuator driven by piezoelectric ceramicwith a micro-gripper based on the sample spherical micro actuator, and the experimental research onthe micro assembly is conducted between a micro shaft of 180 μm and a micro spindle sleeve of 200 μm.the metal sphere and the friction block of the micro driving unit are analyzed.micro operation and assembly for micro electro mechanical systems (MEMS) or other microelements in micro

Keywords： spherical     micro-gripper     friction coefficient     dynamic     frequency    

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Laboratory assessment of Alaska aggregates using Micro-Deval test

Jenny LIU,Sheng ZHAO,Anthony MULLIN

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 1,   Pages 27-34 doi: 10.1007/s11709-016-0359-5

Abstract: This paper presents a study to investigate the feasibility of using Micro-Deval test, commonly used inMicro-Deval test, Washington degradation test and other tests currently specified in Alaska were conductedBased on the testing results, it is found that using Micro-Deval test for durability assessment of Alaskaaggregates was feasible and reproducible, and a high potential was revealed to use Micro-Deval testIt is recommended that Micro-Deval test be considered as an additional test for a certain period, but

Keywords： aggregate durability     Washington degradation test     Micro-Deval test    

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Characterization of micro-mixing in a novel impinging streams reactor

Hui HU, Zhiming CHEN, Zhen JIAO

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 1,   Pages 58-64 doi: 10.1007/s11705-009-0106-8

Abstract: increase of flux, the decrease of inter-nozzle distance and a suitable circulation can improve the micro-mixingBased on turbulence theory, it was estimated that the characteristic micro-mixing time was 0.002—0.02The micro-mixing time was related to the segregation index, which was in good agreement with those in

Keywords： micro-mixing     impinging streams reactor     turbulent mixing     mass transfer    

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Recent advances in micro- and nano-machining technologies

Shang GAO, Han HUANG

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 1,   Pages 18-32 doi: 10.1007/s11465-017-0410-9

Abstract: The miniaturization of devices in different fields requires production of micro- and nano-scale componentsThis paper reviewed the recent advances in micro- and nano-machining technologies, including micro-cutting, micro-electrical-discharge machining, laser micro-machining, and focused ion beam machining.

Keywords： micro machining     cutting     electro discharge machining (EDM)     laser machining     focused ion beam (FIB)    

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Industrial-scale investigations on effects of tertiary-air declination angle on combustion and steam

Xiaoguang LI, Lingyan ZENG, Hongye LIU, Yao LI, Yifu LI, Yunlong ZHAO, Bo JIAO, Minhang SONG, Shaofeng ZHANG, Zhichao CHEN, Zhengqi LI

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 132-142 doi: 10.1007/s11708-020-0803-z

Abstract: Industrial-scale experiments were conducted to study the effects of tertiary air declination angle (TDA

Keywords： supercritical down-fired boiler     industrial-scale experiment     tertiary air declination angle     coal combustion    

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Special issue: Micro-electromechanical systems (MEMS)

Zhuangde JIANG

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 4,   Pages 457-458 doi: 10.1007/s11465-017-0492-4

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Title Author Date Type Operation

Micro-angle tilt detection for the rotor of a novel rotational gyroscopewith a 0.47’’ resolution

Hai LI, Xiao-wei LIU, Rui WENG, Hai-feng ZHANG

Journal Article

Precise semi-analytical inverse kinematic solution for 7-DOF offset manipulator with arm angle optimization

Journal Article

Evaluating the material strength from fracture angle under uniaxial loading

Jitang FAN

Journal Article

Flexible micro flow sensor for micro aerial vehicles

Rong ZHU, Ruiyi QUE, Peng LIU

Journal Article

Computation of the protein molecular mechanism using adaptive dihedral angle increments

Mikel DIEZ, Victor PETUYA, Mónica URIZAR, Erik MACHO, Oscar ALTUZARRRA

Journal Article

CFD simulation on shell-and-tube heat exchangers with small-angle helical baffles

Minhua ZHANG,Fang MENG,Zhongfeng GENG

Journal Article

Dependence of error sensitivity of frequency on bias voltage in force-balanced micro accelerometer

Lili CHEN, Wu ZHOU

Journal Article

Numerical simulation of micro scale flowing and boiling

Wen WANG, Rui ZHUAN,

Journal Article

Effects of Boundary Condition and Helix Angle on Meshing Performance of TI Worm Gearing

SUN Yue-hai, DUAN Lu-qian, WANG Shu-ren, ZHANG Ce

Journal Article

Dynamical research on spherical micro actuator with piezoelectric ceramic stacks drivers

ZHANG Ruihua, CHEN Haichu

Journal Article

Laboratory assessment of Alaska aggregates using Micro-Deval test

Jenny LIU,Sheng ZHAO,Anthony MULLIN

Journal Article

Characterization of micro-mixing in a novel impinging streams reactor

Hui HU, Zhiming CHEN, Zhen JIAO

Journal Article

Recent advances in micro- and nano-machining technologies

Shang GAO, Han HUANG

Journal Article

Industrial-scale investigations on effects of tertiary-air declination angle on combustion and steam

Xiaoguang LI, Lingyan ZENG, Hongye LIU, Yao LI, Yifu LI, Yunlong ZHAO, Bo JIAO, Minhang SONG, Shaofeng ZHANG, Zhichao CHEN, Zhengqi LI

Journal Article

Special issue: Micro-electromechanical systems (MEMS)

Zhuangde JIANG

Journal Article